Brother MFC-J6510DW Service Manual page 174

7) Remove the LR fitting jig and LR positioning jig.
8) Untie the CR timing belt loosely tied. First, at the left end, set the belt on the idle pulley.
Next, press the idle pulley holder to the right and at the right end, set the belt on the carriage
motor pulley. (See
9) Slide the head/carriage unit by hand to check that it smoothly moves to the right and left
ends of its travel.
10) Set the head joint rubber on the head/carriage unit and secure the head joint to the head/
carriage unit with the joint leaf spring. (See
11) Mount the carriage PCB ASSY on the head/carriage unit, route the head flat cables through
the cable guide, and fit the hole provided in the film over the boss on the head/carriage unit
as shown below.
Make sure that the head/carriage unit is secured with the lock spring.
12) Connect the carriage-head flat cable to the connector on the carriage PCB and then lock the
connector.
Carriage-head flat cable
13) Set the head cover into place.
14) If a new head/carriage unit is mounted, apply the specified lubricant to the specified points
on the sliding surface of the CR guide rail and CR support chassis, referring to
15) Check that the CR encoder strip and PF encoder disk are free of grease and ink. If they are
stained with grease or ink, replace them.
16) Slide the head/carriage unit by hand to check that it smoothly moves to the right and left
ends of its travel. At the same time, check that the ink supply tubes and head flat cables are
not twisted.
17) If a new head/carriage unit is mounted, make adjustments specified in
4.1.
page 3-43.)
Head flat cables
Carriage PCB ASSY
Lock spring
3-49
page 3-42.)
Cable guide
Hole
Film
Boss
(3_016)
Section 3.5.
Chapter 4, Section
Confidential